1. Grainco. 2001. Commodity Prices for Toowoomba, Australia. Internet publication (www.grainco.com.au), accessed on the 24th of February 2001.
2. Nitrogen response characteristics of wheat protein in relation to yield responses and their interactions with phosphorus
3. Jensen, T., Zeller, L. and Kelly, R. M. 2001. Mechanising on-the-run grain sampling. In: Proceedings of the 10th Australian Agronomy Conference (Internet publication: www.regional.org.au/au/asa/2001/, Hobart, Australia), accessed on the 12th of January 2002.
4. Kelly, R. M., Strong, W. M., Jensen, T. and Butler, D. 2001a. Strategies to interpret the yield map: defining yield-limiting factors. In: Proceedings of the 10th Australian Agronomy Conference (Internet publication: www.regional.org.au/au/asa/2001/, Hobart, Australia), accessed on the 12th of January 2002.